The LaSalle County Inmate Population
The phrase "LaSalle County inmate population" covers more than one group of people. The sheriff's office runs the LaSalle County Jail in Ottawa, where pre-trial detainees and short-term county prisoners are held. A second group sits inside the county lines but is not part of the jail count: sentenced state prisoners at Sheridan Correctional Center, who answer to the Illinois Department of Corrections rather than the sheriff. A third and much smaller group is the youth held at the county juvenile detention home, whose records are restricted. Each population is reported by a different agency, so a single number never tells the whole story.
Day to day, the jail count rises and falls with arrests, court decisions, and transfers. A person booked tonight may be released within hours, held for a first court appearance, or moved to state prison weeks later after a sentence. The official LaSalle County Jail page describes the facility as predominately medium security, holding minimum and maximum security inmates as well, which is why the same roster can list people facing very different charges.
The official county jail page is the best starting point for facility-level facts. A look at the LaSalle County Jail page shows the contact details, mail and deposit rules, the medication-assisted recovery program, and visitation policy in one place.

That page is run by the county itself, so it is the reference to trust over any third-party listing when a phone number, address, or rule needs to be confirmed.
LaSalle County Inmate Population Statistics
The clearest sourced snapshot of the jail comes from the 2024 Illinois Department of Corrections county jail inspection, dated July 9, 2024. On that date the jail held 64 people, made up of 58 men and 6 women, with no juveniles in the adult facility. The inspection lists a rated capacity of 306 beds, broken out as 266 male beds and 40 female beds. The county jail page rounds this to 305 beds, so the two official sources differ by a single bed, with the inspection giving the detailed gender split.
The figures below pull together the sourced capacity and population numbers for every facility tied to the county, both the sheriff's jail and the larger state prison that sits within the county lines.
| Measure | Figure | Source / Year |
|---|---|---|
| Jail rated capacity | 306 (266 male, 40 female) | 2024 IDOC jail inspection, July 9, 2024 |
| Jail population on inspection date | 64 (58 male, 6 female) | 2024 IDOC jail inspection |
| County jail page bed count | 305 | LaSalle County Jail page, 2026 |
| Sheridan Correctional Center capacity | 2,107 | IDOC Sheridan facility page |
| Sheridan Correctional Center population | 1,210 | IDOC Sheridan page, as of 6/30/24 |
| Juvenile detention capacity | 16 beds | 2024 IDJJ inspection report |
| County residents | 108,390 | U.S. Census QuickFacts, July 1, 2024 |
LaSalle County Inmate Population Trends
A real multi-year average daily population for the jail is not published on the county website, so the safest local trend statement uses the inspection record. The state Jail and Detention Standards Unit collects monthly population counts from the jail, but those raw monthly tables are not posted for public download. The county archive does hold inspection reports for several years, which gives a sense of how often the jail is reviewed even where the headcount did not extract cleanly.
| Year | Jail Inspection Population | Notes |
|---|---|---|
| 2024 | 64 (point-in-time, July 9) | IDOC inspection: 58 male, 6 female |
| 2025 | Report on file | County archive; count not published in the readable extract |
| 2023 | Report on file | County archive; inspection and follow-up letter listed |
| 2021 | Report on file | County archive; earliest report in the listed set |
One number does not prove a long-term rise or fall. What it does show is that on a normal weekday in mid-2024 the jail ran far below its rated capacity, a useful anchor that should not be stretched into an annual rate it cannot support.
Who Makes Up the LaSalle County Inmate Population
The 2024 inspection gives a clean split by sex but stops there. It did not publish race, age bands, the pre-trial versus sentenced share, or how many people were held for other agencies. Rather than guess at those breakdowns, the honest picture relies on what the record actually reports, plus the facility's stated role as a short-term, mostly pre-trial jail.
- Men and women - the July 2024 inspection counted 58 men and 6 women in custody.
- Adults only in the jail - the adult jail held zero juveniles; youth are detained separately at the county detention home.
- Mostly local and pre-trial - the sheriff describes the jail as a place to confine people for short periods while awaiting trial or processing.
- Sentenced felons counted elsewhere - once sentenced to state prison, a person leaves the jail count and joins the IDOC population.
LaSalle County Jail Capacity and Overcrowding
On the inspection date the jail was well under its rated capacity. Sixty-four people in a 306-bed facility works out to roughly 21 percent full, with the male side near 22 percent and the female side at 15 percent. That left more than 240 empty beds at that moment. The inspection also recorded the building's unusual housing layout: two sixteen-bed dorms, two twenty-four-bed dorms, twenty-four single detention rooms, ninety-seven double detention rooms, and one eight-bed dorm. The jail was built in 2002 and the inspection listed no later renovation.
A low point-in-time count is not the same as a guarantee against crowding, since population can swing with a single large case or a backlog of court dates. The research located no consent decree, overcrowding lawsuit, or new-construction plan for the jail, so the defensible statement is simply that the jail had ample open beds on the day it was last inspected.
Laws Governing the LaSalle County Inmate Population
Several Illinois laws explain why this data exists and why the public can reach it. The Freedom of Information Act makes jail booking and population records public, subject to limited exemptions. The County Jail Act puts the sheriff in charge as warden and requires custody records on each person committed. State jail standards require the jail to file monthly population reports, and a separate statute requires any death in custody to be reported to the state. These are governance rules, not access rules, and they are the reason a small county jail still produces inspection data and monthly counts.
Key Statutes:
Illinois FOIA, 5 ILCS 140 - jail booking and population records are public records that anyone may request, subject to exemptions.
County Jail Act, 730 ILCS 125 - the sheriff serves as warden of the county jail and keeps custody and records of people committed to it.
20 Ill. Adm. Code 701.30 - the jail must submit monthly population reports to the state Jail and Detention Standards Unit and keep booking records.
730 ILCS 210/3-5 - detention facilities must report any death in custody, supporting public oversight.
LaSalle County and the State Prison Population
The biggest correctional population physically inside the county is not a jail population at all. Sheridan Correctional Center, a medium-security adult male prison run by the Illinois Department of Corrections, listed an operational capacity of 2,107 and a population of 1,210 as of June 30, 2024. It is dedicated to substance-abuse treatment and is described by the state as one of the largest programs of its kind in the nation. People sentenced out of LaSalle County courts may end up at Sheridan or at any other IDOC facility, depending on classification, and their location is tracked through the state, not the sheriff. That is the key reason the home page keeps the county jail count and the state prison count separate.
How to Search the LaSalle County Inmate Population
The official roster for current jail custody is the LaSalle County Sheriff's iSOMS portal. Its home page links to the current Jail roster, a 24-hour intake and release list, a 72-hour intake and release list, and a missing-persons page. There is one catch worth knowing before you start: the jail roster sits behind a Google reCAPTCHA human check, so a blocked page does not mean the county lacks a roster. You complete the check, then the list loads.
The starting point is the portal home page rather than a search engine result. The iSOMS sheriff portal opens with the same Jail and intake-release links the county maintains.

From that home page the steps are short and repeatable.
- Open the iSOMS portal and choose Jail for current custody, or one of the intake/release links for recent movement.
- Complete the human check if the page prompts you, since the roster will not load until it is cleared.
- Use the 24-hour or 72-hour intake and release lists when an arrest was very recent and the person is not on the main roster yet.
- If the person still does not appear, call the jail at 815-434-8383 for current custody and release questions.
- If the person was sentenced to state prison, switch to the state IDOC locator instead of the county roster.
Current Inmate Lookup in LaSalle County
The iSOMS portal exposes three official jail lookup paths on its public navigation. During research the search fields behind the human check could not be inspected, so the table below lists the confirmed portal paths rather than invented form fields. Each path answers a slightly different question about current or very recent custody.
| Portal Path | What It Covers | Note |
|---|---|---|
| Jail | People believed to be in custody right now | reCAPTCHA human check applies |
| Jail Intake/Release (24 hours) | Bookings and releases in the last day | Best for a brand-new arrest |
| Jail Intake/Release (72 hours) | Bookings and releases in the last three days | Catches recent movement off the main list |
| Missing Persons | Sheriff missing-person listings | Separate from the jail roster |
For a person who was just arrested, the 24-hour list is often faster than the main roster, since booking and intake processing must finish before a full record appears.
Past and Released Inmate Records
The live roster is built for current custody, not history. Once a person is released, they drop off the main list, and the 24-hour and 72-hour pages only reach back a few days. To find an older booking, a release date, or a record the roster never showed, the route is a jail records request under FOIA. The jail FOIA form asks for as much detail as possible, including the person's name, the date, the booking number, and the case number, which makes an older record far easier to locate. A request can be dropped off, emailed, faxed, or mailed to the jail FOIA officer.
What a LaSalle County Inmate Record Shows
Because the public roster display was gated during research, the most reliable description of what the jail keeps on each person comes from the 2024 inspection record, which lists the categories of information held in a booking and personal file. A few corrections terms come up again and again, so a short glossary keeps the rest of the page clear.
- Booking
- The intake process that creates a custody record after an arrest.
- Pre-trial release
- Release from custody while a case is pending, subject to conditions a judge sets.
- Detainer
- A hold placed by another agency that can keep a person in custody even if the local case changes.
- Classification
- The jail process that decides custody level and housing assignment.
- Mittimus
- A court commitment order directing that a person be taken into custody.
The full jail file goes well beyond anything a public roster shows, covering medical and mental-health screening, property, visitors, discipline, and the case disposition. That depth is exactly why a records request, not the roster, is the tool for a complete history.
County Jail vs. State Prison: Where to Look
The single most common mistake is searching the county roster for someone who has already been sent to state prison. Pre-trial detainees and people serving short county time sit in the sheriff's jail. Sentenced felons move to an Illinois Department of Corrections prison, which has its own statewide locator. The table makes the split plain.
| County Jail | State Prison (IDOC) | |
|---|---|---|
| Who Is Held | Pre-trial and short sentences | Sentenced felons |
| Run By | LaSalle County Sheriff | Illinois Department of Corrections (IDOC) |
| Where to Look | iSOMS jail roster | IDOC Individual in Custody Search |
| Example Facility | LaSalle County Jail | Sheridan Correctional Center |
State and Federal Inmate Search
When the county roster is the wrong system, three official locators cover the rest of the inmate population. The Illinois Department of Corrections handles sentenced state prisoners, the federal Bureau of Prisons handles federal inmates, and ICE handles immigration detainees. The state locator searches by last name, IDOC number, or birthdate.
| Field Label | Type | Required | Notes |
|---|---|---|---|
| Last Name | Text | One search path | Examples: "Smith, John" or "Smith" or "Smit" |
| IDOC Number | Text | One search path | Example: K01234 |
| Birthdate | Date | One search path | Example: 04-01-1965 |
The state search page is the right tool once a person leaves the jail count after sentencing. The IDOC Individual in Custody Search returns the facility, identifiers, and status for people in state custody.

Federal custody works differently again. A federal defendant may sit in U.S. Marshals custody before sentencing, then move into a Bureau of Prisons institution. The BOP inmate locator covers federal inmates from 1982 to the present and searches by number or by name.

For immigration custody, the ICE Online Detainee Locator searches by A-number or by name, country of birth, and birth date. No ICE detention facility was found inside LaSalle County, Illinois, and the name should not be confused with LaSalle-branded immigration facilities in other states. For custody-change alerts on any of these systems, VINELink provides victim notification.
LaSalle County Detention Facilities
Three facilities hold part of the broader inmate population tied to the county, and each holds a different group under a different agency. The sheriff runs the jail, the state runs the prison, and the county runs the juvenile detention home.
- LaSalle County Jail - the sheriff's medium-security jail in Ottawa for pre-trial detainees and short-term county prisoners.
- LaSalle County Detention Home - the county juvenile detention center, a restricted youth facility, not an adult inmate-search source.
- Sheridan Correctional Center - a state IDOC prison for sentenced adult men, searched through the state locator rather than the jail roster.
LaSalle County Inmate Population FAQ
How big is the LaSalle County inmate population?
On the most recent published inspection, July 9, 2024, the county jail held 64 people, 58 men and 6 women, in a facility rated for 306 beds. That is a single point-in-time count, not a yearly average, and it does not include the much larger state prison population at Sheridan Correctional Center, which the Illinois Department of Corrections listed at 1,210 as of mid-2024.
How do I search the LaSalle County inmate population?
Start at the sheriff's iSOMS portal and open the Jail roster, completing the reCAPTCHA human check if it appears. For a very recent arrest, the 24-hour and 72-hour intake and release lists often show the person first. If the roster does not list them, call the jail at 815-434-8383, and if they were sentenced to prison, switch to the IDOC locator.
Can I look up a released or past inmate?
The live roster shows current custody, and the intake-release lists only reach back about three days. For an older booking or release, file a jail FOIA request with the person's name, the date, and any booking or case number you have. The jail accepts these requests in person, by email, by fax, or by mail.
Why is the jail roster asking me to prove I am human?
The iSOMS jail roster sits behind a Google reCAPTCHA check. A blocked screen does not mean the county has no roster. Complete the check and the list loads. This is a normal step on the official site, not a sign of a third-party page.
Is someone at Sheridan Correctional Center part of the county jail population?
No. Sheridan sits inside the county, but it is a state prison run by IDOC for sentenced men. Those individuals are part of the state prison population and are searched through the state locator, not the sheriff's jail roster.
Where do I look for a federal or immigration detainee from the area?
Use the federal Bureau of Prisons locator for federal inmates and the ICE Online Detainee Locator for immigration custody. A federal defendant may also be in U.S. Marshals custody before sentencing. None of these appear on the county jail roster.